Spine treatment cushion



FIG. 1 is a perspective view of a spine treatment cushion showing my new design, the broken line showing of the back pad is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a side view, the opposite view being identical;

FIG. 3 is a view of one end;

FIG. 4 is an end view opposite that shown in FIG. 3; FIG. 4 is a top plan view;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom view. 

The ornamental design for a spine treatment cushion, as shown and described. 